Diarmuid and Gráinnes Cave
On the Doneygal side of the Dartry Mountains & at the top of the Gleniff Horseshoe, you can find the highest cave in the whole of Ireland! It’s easy to find as its enormous mouth is visible from across the valley. But unfortunately as of April 2015 any access via the land at the old schoolhouse has been denied by the landowners – bummer. The hike up there was super steep and when you’re up the only way in or out was via an even steeper and very loose scree gully – so it is pretty dangerous.
Apparently there’s a huge chamber at the back, which is accessible via a small tunnel. We didn’t explore this as we weren’t really kitted out for it. Maybe next time.
The wave shaped mountain Benwiskin is next on our list! We didn’t have time to get up there on this visit but report back when we manage it.